47375978 has 32 divisors (see below), whose sum is σ = 78632400. Its totient is φ = 21275136.

The previous prime is 47375971. The next prime is 47376023. The reversal of 47375978 is 87957374.

It can be written as a sum of positive squares in 8 ways, for example, as 32913169 + 14462809 = 5737^2 + 3803^2 .

It is not an unprimeable number, because it can be changed into a prime (47375971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206768 + ... + 206996.

Almost surely, 2^47375978 is an apocalyptic number.

47375978 is a deficient number, since it is larger than the sum of its proper divisors (31256422).

47375978 is a wasteful number, since it uses less digits than its factorization.

47375978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426.

The product of its digits is 1481760, while the sum is 50.

The square root of 47375978 is about 6883.0209937207. The cubic root of 47375978 is about 361.8423506945.

The spelling of 47375978 in words is "forty-seven million, three hundred seventy-five thousand, nine hundred seventy-eight".